Lucy Punch, Bob Odenkirk and Rich Sommer have been cast in the romantic comedy The Giant Mechanical Man.

They join stars Jenna Fischer, Topher Grace, Malin Akerman and Chris Messina in the story of a quiet zoo worker (Fischer) who is torn between a street performer (Messina) and a pompous motivational speaker (Grace). Punch will play the street-performer’s girlfriend.

Lee Kirk wrote and is directing the project, which just began filming in Detroit.

Cowan of U.K.-based Stealth Media is selling international rights to the film while WME Independent, which packaged the talent, is helping to rep North American sales.

Punch, who is repped by WME, United Agents in the U.K. and the Schiff Co., most recently appeared in You Will Meet a Tall Dark Strangerand Dinner for Schmucks. She will next appear in the Columbia comedy Bad Teacherin June.

Repped by WME and Odenkirk Provissiero Entertainment, Odenkirk is a regular on AMC’s Breaking Bad.

Sommer, repped by APA and Davis Spylios Management, is a regular on AMC’s Mad Menand appeared in The Devil Wears Prada